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    <meta charset="UTF-8">
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    <title>Document</title>
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    <script>
        function makeAdder(a) {
            function fn(b) {
                return b  + a 
            }
            return fn
        }
       const addFive =  makeAdder(5)
       console.log(addFive(10));
       console.log(addFive(20));
    </script>
</body>
</html>